On the basis of the method of converting the radiance from thermal remote sensing data into radiant temperature, this paper presents a method to evaluate the capability of Landsat TM thermal data for the detection of sub-pixel coal fires with respect to their sizes and temperatures. This method can also be used for the temperature estimation of coal fire areas of sub-pixel size, with the knowledge of the fire size being provided by airborne thermal scanner data or field survey data.
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Zhang et al. (1997) studied this question.
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